A guy on a bike moves up a ramp as shown above. The total mass of the guy and bike is 150 kg. A. What happens to his kinetic energy as he goes up the ramp?   B. What happens to his gravitational potential energy as he goes up the ramp?   C. What happens to his total energy as he goes up the ramp?   D. What is the height, h, that he reaches?   E. If his mass were to double, what height would he reach?

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A: Given: mass,m = 55 kg height, h = 19 m

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A: Given: The work done is W = 10 J. Initial potential energy is PEi = 30 J.

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A: (A) Let us represent Jeric by J1 and Joshua by J2. Let the point of kicking of ball by J1 be the…

Q: Jeric, a professional rooftop futbol player, kicked a 0.450 [kg] ball off a rooftop that is 81.0 [m]…

A: Diagram for above situation.

Q: (a) Define kinetic energy and gravitational potential energy. What is the Sl unit for energy? (b) A…

A: Kinetic energy= (1/2) mv2 Gravitation potential energy= mgh where m = mass v = speed h = height

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A: (a)   The total energy of the sled and rider at the top of the hill can be calculated as,

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A: Circular motion is a movement of an object along the circumference of a circle or rotation along a…

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Q: Part A A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through the…

A: mass= m = 120,000 kg velocity = V = 16 m/s

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A: Given data:  Horizontal applied force (F) = 6.0 N Displacement (d) = 7.0 m Velocity is constant

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A: Given Initial kinetic energy is KEi =32000 J Final kinetic energy is KEf =0 Find the work done.

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Q: Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft…

A: mass of orbiter (m) = 629 kg distance (d) = 2.89×106 km speed (u) = 1.20×104 kmhr= 12000 ×518 ms=…

Q: If a 1.3 kg ball is dropped from the top of a 33.7 meter building what is its potential energy…

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Q: A hydroelectric power facility converts the gravitational potential energy of water behind a dam to…

A: a) Write the expression for the gravitational potential energy and substitute the required values.

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A: mass = 40 kg h = 25 m New H = 2*25 = 50 m

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A: Answer              B. More potential Solution

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Q: About 50,000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona.…

A: Consider the mass of meteor is about 1.4×108 kg which hits at a speed of 12×103 m/s.

Q: A sled and rider with a combined weight of 51 kg are at rest on the top of a hill 13 m high. (a)…

A: a) The expression for find total energy of the sled and rider at the top of the hill is…

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Q: Suppose the spring below has a spring constant of 50.0 N/m. The box has a mass of 8.0kg and rests on…

A: Write the given values with the suitable variables. k=50 N/mm=8 kgx=4 m Here, k is the spring…

Q: Part A A cannon tilted up at a 29.0 ° angle fires a cannon ball at 68.0 m/s from atop a 10.0 m-high…

A: initial KE =12mu2 initial PE = mgh

Q: The pitcher throws the 0.145 kg baseball towards the catcher at 42 m/s. (a) How much kinetic energy…

A: Given: The mass (m) of the baseball is 0.145 Kg. The speed (v) of the baseball is 42 m/s.…

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Q: Constants Part A Suppose you were to drop a 16 lb bowling ball from the top of the Empire State…

A: Mass of ball, m = 16 lb Height, h = 440 m Power, P = 110 W Time, t = ?  Remember: 1 lb = 0.454 kg

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Q: You ran to a mountain that is 2km high in 30 min. (a) If your mass is 80 kg, find out what…

A: a) at peak potential energy  U = mgh = 80×10×2000  U = 1.6×106 J

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.